2 * xen backend driver infrastructure
3 * (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; under version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, see <http://www.gnu.org/licenses/>.
17 * Contributions after 2012-01-13 are licensed under the terms of the
18 * GNU GPL, version 2 or (at your option) any later version.
22 * TODO: add some xenbus / xenstore concepts overview here.
25 #include "qemu/osdep.h"
27 #include "hw/sysbus.h"
28 #include "hw/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qemu/main-loop.h"
31 #include "qapi/error.h"
32 #include "hw/xen/xen-legacy-backend.h"
33 #include "hw/xen/xen_pvdev.h"
34 #include "monitor/qdev.h"
36 DeviceState
*xen_sysdev
;
39 /* ------------------------------------------------------------- */
42 struct xs_handle
*xenstore
;
43 const char *xen_protocol
;
46 static bool xen_feature_grant_copy
;
49 int xenstore_write_be_str(struct XenLegacyDevice
*xendev
, const char *node
,
52 return xenstore_write_str(xendev
->be
, node
, val
);
55 int xenstore_write_be_int(struct XenLegacyDevice
*xendev
, const char *node
,
58 return xenstore_write_int(xendev
->be
, node
, ival
);
61 int xenstore_write_be_int64(struct XenLegacyDevice
*xendev
, const char *node
,
64 return xenstore_write_int64(xendev
->be
, node
, ival
);
67 char *xenstore_read_be_str(struct XenLegacyDevice
*xendev
, const char *node
)
69 return xenstore_read_str(xendev
->be
, node
);
72 int xenstore_read_be_int(struct XenLegacyDevice
*xendev
, const char *node
,
75 return xenstore_read_int(xendev
->be
, node
, ival
);
78 char *xenstore_read_fe_str(struct XenLegacyDevice
*xendev
, const char *node
)
80 return xenstore_read_str(xendev
->fe
, node
);
83 int xenstore_read_fe_int(struct XenLegacyDevice
*xendev
, const char *node
,
86 return xenstore_read_int(xendev
->fe
, node
, ival
);
89 int xenstore_read_fe_uint64(struct XenLegacyDevice
*xendev
, const char *node
,
92 return xenstore_read_uint64(xendev
->fe
, node
, uval
);
95 /* ------------------------------------------------------------- */
97 int xen_be_set_state(struct XenLegacyDevice
*xendev
, enum xenbus_state state
)
101 rc
= xenstore_write_be_int(xendev
, "state", state
);
105 xen_pv_printf(xendev
, 1, "backend state: %s -> %s\n",
106 xenbus_strstate(xendev
->be_state
), xenbus_strstate(state
));
107 xendev
->be_state
= state
;
111 void xen_be_set_max_grant_refs(struct XenLegacyDevice
*xendev
,
112 unsigned int nr_refs
)
114 assert(xendev
->ops
->flags
& DEVOPS_FLAG_NEED_GNTDEV
);
116 if (xengnttab_set_max_grants(xendev
->gnttabdev
, nr_refs
)) {
117 xen_pv_printf(xendev
, 0, "xengnttab_set_max_grants failed: %s\n",
122 void *xen_be_map_grant_refs(struct XenLegacyDevice
*xendev
, uint32_t *refs
,
123 unsigned int nr_refs
, int prot
)
127 assert(xendev
->ops
->flags
& DEVOPS_FLAG_NEED_GNTDEV
);
129 ptr
= xengnttab_map_domain_grant_refs(xendev
->gnttabdev
, nr_refs
,
130 xen_domid
, refs
, prot
);
132 xen_pv_printf(xendev
, 0,
133 "xengnttab_map_domain_grant_refs failed: %s\n",
140 void xen_be_unmap_grant_refs(struct XenLegacyDevice
*xendev
, void *ptr
,
141 unsigned int nr_refs
)
143 assert(xendev
->ops
->flags
& DEVOPS_FLAG_NEED_GNTDEV
);
145 if (xengnttab_unmap(xendev
->gnttabdev
, ptr
, nr_refs
)) {
146 xen_pv_printf(xendev
, 0, "xengnttab_unmap failed: %s\n",
151 static int compat_copy_grant_refs(struct XenLegacyDevice
*xendev
,
153 XenGrantCopySegment segs
[],
154 unsigned int nr_segs
)
156 uint32_t *refs
= g_new(uint32_t, nr_segs
);
157 int prot
= to_domain
? PROT_WRITE
: PROT_READ
;
161 for (i
= 0; i
< nr_segs
; i
++) {
162 XenGrantCopySegment
*seg
= &segs
[i
];
164 refs
[i
] = to_domain
?
165 seg
->dest
.foreign
.ref
: seg
->source
.foreign
.ref
;
168 pages
= xengnttab_map_domain_grant_refs(xendev
->gnttabdev
, nr_segs
,
169 xen_domid
, refs
, prot
);
171 xen_pv_printf(xendev
, 0,
172 "xengnttab_map_domain_grant_refs failed: %s\n",
178 for (i
= 0; i
< nr_segs
; i
++) {
179 XenGrantCopySegment
*seg
= &segs
[i
];
180 void *page
= pages
+ (i
* XC_PAGE_SIZE
);
183 memcpy(page
+ seg
->dest
.foreign
.offset
, seg
->source
.virt
,
186 memcpy(seg
->dest
.virt
, page
+ seg
->source
.foreign
.offset
,
191 if (xengnttab_unmap(xendev
->gnttabdev
, pages
, nr_segs
)) {
192 xen_pv_printf(xendev
, 0, "xengnttab_unmap failed: %s\n",
200 int xen_be_copy_grant_refs(struct XenLegacyDevice
*xendev
,
202 XenGrantCopySegment segs
[],
203 unsigned int nr_segs
)
205 xengnttab_grant_copy_segment_t
*xengnttab_segs
;
209 assert(xendev
->ops
->flags
& DEVOPS_FLAG_NEED_GNTDEV
);
211 if (!xen_feature_grant_copy
) {
212 return compat_copy_grant_refs(xendev
, to_domain
, segs
, nr_segs
);
215 xengnttab_segs
= g_new0(xengnttab_grant_copy_segment_t
, nr_segs
);
217 for (i
= 0; i
< nr_segs
; i
++) {
218 XenGrantCopySegment
*seg
= &segs
[i
];
219 xengnttab_grant_copy_segment_t
*xengnttab_seg
= &xengnttab_segs
[i
];
222 xengnttab_seg
->flags
= GNTCOPY_dest_gref
;
223 xengnttab_seg
->dest
.foreign
.domid
= xen_domid
;
224 xengnttab_seg
->dest
.foreign
.ref
= seg
->dest
.foreign
.ref
;
225 xengnttab_seg
->dest
.foreign
.offset
= seg
->dest
.foreign
.offset
;
226 xengnttab_seg
->source
.virt
= seg
->source
.virt
;
228 xengnttab_seg
->flags
= GNTCOPY_source_gref
;
229 xengnttab_seg
->source
.foreign
.domid
= xen_domid
;
230 xengnttab_seg
->source
.foreign
.ref
= seg
->source
.foreign
.ref
;
231 xengnttab_seg
->source
.foreign
.offset
=
232 seg
->source
.foreign
.offset
;
233 xengnttab_seg
->dest
.virt
= seg
->dest
.virt
;
236 xengnttab_seg
->len
= seg
->len
;
239 rc
= xengnttab_grant_copy(xendev
->gnttabdev
, nr_segs
, xengnttab_segs
);
242 xen_pv_printf(xendev
, 0, "xengnttab_copy failed: %s\n",
246 for (i
= 0; i
< nr_segs
; i
++) {
247 xengnttab_grant_copy_segment_t
*xengnttab_seg
=
250 if (xengnttab_seg
->status
!= GNTST_okay
) {
251 xen_pv_printf(xendev
, 0, "segment[%u] status: %d\n", i
,
252 xengnttab_seg
->status
);
257 g_free(xengnttab_segs
);
262 * get xen backend device, allocate a new one if it doesn't exist.
264 static struct XenLegacyDevice
*xen_be_get_xendev(const char *type
, int dom
,
266 struct XenDevOps
*ops
)
268 struct XenLegacyDevice
*xendev
;
270 xendev
= xen_pv_find_xendev(type
, dom
, dev
);
275 /* init new xendev */
276 xendev
= g_malloc0(ops
->size
);
277 object_initialize(&xendev
->qdev
, ops
->size
, TYPE_XENBACKEND
);
278 OBJECT(xendev
)->free
= g_free
;
279 qdev_set_id(DEVICE(xendev
), g_strdup_printf("xen-%s-%d", type
, dev
));
280 qdev_realize(DEVICE(xendev
), xen_sysbus
, &error_fatal
);
281 object_unref(OBJECT(xendev
));
288 snprintf(xendev
->be
, sizeof(xendev
->be
), "backend/%s/%d/%d",
289 xendev
->type
, xendev
->dom
, xendev
->dev
);
290 snprintf(xendev
->name
, sizeof(xendev
->name
), "%s-%d",
291 xendev
->type
, xendev
->dev
);
293 xendev
->debug
= debug
;
294 xendev
->local_port
= -1;
296 xendev
->evtchndev
= xenevtchn_open(NULL
, 0);
297 if (xendev
->evtchndev
== NULL
) {
298 xen_pv_printf(NULL
, 0, "can't open evtchn device\n");
299 qdev_unplug(DEVICE(xendev
), NULL
);
302 qemu_set_cloexec(xenevtchn_fd(xendev
->evtchndev
));
304 xen_pv_insert_xendev(xendev
);
306 if (xendev
->ops
->alloc
) {
307 xendev
->ops
->alloc(xendev
);
315 * Sync internal data structures on xenstore updates.
316 * Node specifies the changed field. node = NULL means
317 * update all fields (used for initialization).
319 static void xen_be_backend_changed(struct XenLegacyDevice
*xendev
,
322 if (node
== NULL
|| strcmp(node
, "online") == 0) {
323 if (xenstore_read_be_int(xendev
, "online", &xendev
->online
) == -1) {
329 xen_pv_printf(xendev
, 2, "backend update: %s\n", node
);
330 if (xendev
->ops
->backend_changed
) {
331 xendev
->ops
->backend_changed(xendev
, node
);
336 static void xen_be_frontend_changed(struct XenLegacyDevice
*xendev
,
341 if (node
== NULL
|| strcmp(node
, "state") == 0) {
342 if (xenstore_read_fe_int(xendev
, "state", &fe_state
) == -1) {
343 fe_state
= XenbusStateUnknown
;
345 if (xendev
->fe_state
!= fe_state
) {
346 xen_pv_printf(xendev
, 1, "frontend state: %s -> %s\n",
347 xenbus_strstate(xendev
->fe_state
),
348 xenbus_strstate(fe_state
));
350 xendev
->fe_state
= fe_state
;
352 if (node
== NULL
|| strcmp(node
, "protocol") == 0) {
353 g_free(xendev
->protocol
);
354 xendev
->protocol
= xenstore_read_fe_str(xendev
, "protocol");
355 if (xendev
->protocol
) {
356 xen_pv_printf(xendev
, 1, "frontend protocol: %s\n",
362 xen_pv_printf(xendev
, 2, "frontend update: %s\n", node
);
363 if (xendev
->ops
->frontend_changed
) {
364 xendev
->ops
->frontend_changed(xendev
, node
);
369 /* ------------------------------------------------------------- */
370 /* Check for possible state transitions and perform them. */
373 * Initial xendev setup. Read frontend path, register watch for it.
374 * Should succeed once xend finished setting up the backend device.
376 * Also sets initial state (-> Initializing) when done. Which
377 * only affects the xendev->be_state variable as xenbus should
378 * already be put into that state by xend.
380 static int xen_be_try_setup(struct XenLegacyDevice
*xendev
)
382 char token
[XEN_BUFSIZE
];
385 if (xenstore_read_be_int(xendev
, "state", &be_state
) == -1) {
386 xen_pv_printf(xendev
, 0, "reading backend state failed\n");
390 if (be_state
!= XenbusStateInitialising
) {
391 xen_pv_printf(xendev
, 0, "initial backend state is wrong (%s)\n",
392 xenbus_strstate(be_state
));
396 xendev
->fe
= xenstore_read_be_str(xendev
, "frontend");
397 if (xendev
->fe
== NULL
) {
398 xen_pv_printf(xendev
, 0, "reading frontend path failed\n");
402 /* setup frontend watch */
403 snprintf(token
, sizeof(token
), "fe:%p", xendev
);
404 if (!xs_watch(xenstore
, xendev
->fe
, token
)) {
405 xen_pv_printf(xendev
, 0, "watching frontend path (%s) failed\n",
409 xen_be_set_state(xendev
, XenbusStateInitialising
);
411 xen_be_backend_changed(xendev
, NULL
);
412 xen_be_frontend_changed(xendev
, NULL
);
417 * Try initialize xendev. Prepare everything the backend can do
418 * without synchronizing with the frontend. Fakes hotplug-status. No
419 * hotplug involved here because this is about userspace drivers, thus
420 * there are kernel backend devices which could invoke hotplug.
422 * Goes to InitWait on success.
424 static int xen_be_try_init(struct XenLegacyDevice
*xendev
)
428 if (!xendev
->online
) {
429 xen_pv_printf(xendev
, 1, "not online\n");
433 if (xendev
->ops
->init
) {
434 rc
= xendev
->ops
->init(xendev
);
437 xen_pv_printf(xendev
, 1, "init() failed\n");
441 xenstore_write_be_str(xendev
, "hotplug-status", "connected");
442 xen_be_set_state(xendev
, XenbusStateInitWait
);
447 * Try to initialise xendev. Depends on the frontend being ready
448 * for it (shared ring and evtchn info in xenstore, state being
449 * Initialised or Connected).
451 * Goes to Connected on success.
453 static int xen_be_try_initialise(struct XenLegacyDevice
*xendev
)
457 if (xendev
->fe_state
!= XenbusStateInitialised
&&
458 xendev
->fe_state
!= XenbusStateConnected
) {
459 if (xendev
->ops
->flags
& DEVOPS_FLAG_IGNORE_STATE
) {
460 xen_pv_printf(xendev
, 2, "frontend not ready, ignoring\n");
462 xen_pv_printf(xendev
, 2, "frontend not ready (yet)\n");
467 if (xendev
->ops
->flags
& DEVOPS_FLAG_NEED_GNTDEV
) {
468 xendev
->gnttabdev
= xengnttab_open(NULL
, 0);
469 if (xendev
->gnttabdev
== NULL
) {
470 xen_pv_printf(NULL
, 0, "can't open gnttab device\n");
474 xendev
->gnttabdev
= NULL
;
477 if (xendev
->ops
->initialise
) {
478 rc
= xendev
->ops
->initialise(xendev
);
481 xen_pv_printf(xendev
, 0, "initialise() failed\n");
485 xen_be_set_state(xendev
, XenbusStateConnected
);
490 * Try to let xendev know that it is connected. Depends on the
491 * frontend being Connected. Note that this may be called more
492 * than once since the backend state is not modified.
494 static void xen_be_try_connected(struct XenLegacyDevice
*xendev
)
496 if (!xendev
->ops
->connected
) {
500 if (xendev
->fe_state
!= XenbusStateConnected
) {
501 if (xendev
->ops
->flags
& DEVOPS_FLAG_IGNORE_STATE
) {
502 xen_pv_printf(xendev
, 2, "frontend not ready, ignoring\n");
504 xen_pv_printf(xendev
, 2, "frontend not ready (yet)\n");
509 xendev
->ops
->connected(xendev
);
513 * Teardown connection.
515 * Goes to Closed when done.
517 static void xen_be_disconnect(struct XenLegacyDevice
*xendev
,
518 enum xenbus_state state
)
520 if (xendev
->be_state
!= XenbusStateClosing
&&
521 xendev
->be_state
!= XenbusStateClosed
&&
522 xendev
->ops
->disconnect
) {
523 xendev
->ops
->disconnect(xendev
);
525 if (xendev
->gnttabdev
) {
526 xengnttab_close(xendev
->gnttabdev
);
527 xendev
->gnttabdev
= NULL
;
529 if (xendev
->be_state
!= state
) {
530 xen_be_set_state(xendev
, state
);
535 * Try to reset xendev, for reconnection by another frontend instance.
537 static int xen_be_try_reset(struct XenLegacyDevice
*xendev
)
539 if (xendev
->fe_state
!= XenbusStateInitialising
) {
543 xen_pv_printf(xendev
, 1, "device reset (for re-connect)\n");
544 xen_be_set_state(xendev
, XenbusStateInitialising
);
549 * state change dispatcher function
551 void xen_be_check_state(struct XenLegacyDevice
*xendev
)
555 /* frontend may request shutdown from almost anywhere */
556 if (xendev
->fe_state
== XenbusStateClosing
||
557 xendev
->fe_state
== XenbusStateClosed
) {
558 xen_be_disconnect(xendev
, xendev
->fe_state
);
562 /* check for possible backend state transitions */
564 switch (xendev
->be_state
) {
565 case XenbusStateUnknown
:
566 rc
= xen_be_try_setup(xendev
);
568 case XenbusStateInitialising
:
569 rc
= xen_be_try_init(xendev
);
571 case XenbusStateInitWait
:
572 rc
= xen_be_try_initialise(xendev
);
574 case XenbusStateConnected
:
575 /* xendev->be_state doesn't change */
576 xen_be_try_connected(xendev
);
579 case XenbusStateClosed
:
580 rc
= xen_be_try_reset(xendev
);
591 /* ------------------------------------------------------------- */
593 static int xenstore_scan(const char *type
, int dom
, struct XenDevOps
*ops
)
595 struct XenLegacyDevice
*xendev
;
596 char path
[XEN_BUFSIZE
], token
[XEN_BUFSIZE
];
598 unsigned int cdev
, j
;
601 snprintf(token
, sizeof(token
), "be:%p:%d:%p", type
, dom
, ops
);
602 snprintf(path
, sizeof(path
), "backend/%s/%d", type
, dom
);
603 if (!xs_watch(xenstore
, path
, token
)) {
604 xen_pv_printf(NULL
, 0, "xen be: watching backend path (%s) failed\n",
609 /* look for backends */
610 dev
= xs_directory(xenstore
, 0, path
, &cdev
);
614 for (j
= 0; j
< cdev
; j
++) {
615 xendev
= xen_be_get_xendev(type
, dom
, atoi(dev
[j
]), ops
);
616 if (xendev
== NULL
) {
619 xen_be_check_state(xendev
);
625 void xenstore_update_be(char *watch
, char *type
, int dom
,
626 struct XenDevOps
*ops
)
628 struct XenLegacyDevice
*xendev
;
629 char path
[XEN_BUFSIZE
], *bepath
;
630 unsigned int len
, dev
;
632 len
= snprintf(path
, sizeof(path
), "backend/%s/%d", type
, dom
);
633 if (strncmp(path
, watch
, len
) != 0) {
636 if (sscanf(watch
+ len
, "/%u/%255s", &dev
, path
) != 2) {
638 if (sscanf(watch
+ len
, "/%u", &dev
) != 1) {
646 xendev
= xen_be_get_xendev(type
, dom
, dev
, ops
);
647 if (xendev
!= NULL
) {
648 bepath
= xs_read(xenstore
, 0, xendev
->be
, &len
);
649 if (bepath
== NULL
) {
650 xen_pv_del_xendev(xendev
);
653 xen_be_backend_changed(xendev
, path
);
654 xen_be_check_state(xendev
);
659 void xenstore_update_fe(char *watch
, struct XenLegacyDevice
*xendev
)
664 len
= strlen(xendev
->fe
);
665 if (strncmp(xendev
->fe
, watch
, len
) != 0) {
668 if (watch
[len
] != '/') {
671 node
= watch
+ len
+ 1;
673 xen_be_frontend_changed(xendev
, node
);
674 xen_be_check_state(xendev
);
676 /* -------------------------------------------------------------------- */
678 int xen_be_init(void)
680 xengnttab_handle
*gnttabdev
;
682 xenstore
= xs_daemon_open();
684 xen_pv_printf(NULL
, 0, "can't connect to xenstored\n");
688 qemu_set_fd_handler(xs_fileno(xenstore
), xenstore_update
, NULL
, NULL
);
690 if (xen_xc
== NULL
|| xen_fmem
== NULL
) {
691 /* Check if xen_init() have been called */
695 gnttabdev
= xengnttab_open(NULL
, 0);
696 if (gnttabdev
!= NULL
) {
697 if (xengnttab_grant_copy(gnttabdev
, 0, NULL
) == 0) {
698 xen_feature_grant_copy
= true;
700 xengnttab_close(gnttabdev
);
703 xen_sysdev
= qdev_new(TYPE_XENSYSDEV
);
704 sysbus_realize_and_unref(SYS_BUS_DEVICE(xen_sysdev
), &error_fatal
);
705 xen_sysbus
= qbus_create(TYPE_XENSYSBUS
, xen_sysdev
, "xen-sysbus");
706 qbus_set_bus_hotplug_handler(xen_sysbus
);
711 qemu_set_fd_handler(xs_fileno(xenstore
), NULL
, NULL
, NULL
);
712 xs_daemon_close(xenstore
);
718 static void xen_set_dynamic_sysbus(void)
720 Object
*machine
= qdev_get_machine();
721 ObjectClass
*oc
= object_get_class(machine
);
722 MachineClass
*mc
= MACHINE_CLASS(oc
);
724 machine_class_allow_dynamic_sysbus_dev(mc
, TYPE_XENSYSDEV
);
727 int xen_be_register(const char *type
, struct XenDevOps
*ops
)
732 if (ops
->backend_register
) {
733 rc
= ops
->backend_register();
739 snprintf(path
, sizeof(path
), "device-model/%u/backends/%s", xen_domid
,
741 xenstore_mkdir(path
, XS_PERM_NONE
);
743 return xenstore_scan(type
, xen_domid
, ops
);
746 void xen_be_register_common(void)
748 xen_set_dynamic_sysbus();
750 xen_be_register("console", &xen_console_ops
);
751 xen_be_register("vkbd", &xen_kbdmouse_ops
);
753 xen_be_register("9pfs", &xen_9pfs_ops
);
755 #ifdef CONFIG_USB_LIBUSB
756 xen_be_register("qusb", &xen_usb_ops
);
760 int xen_be_bind_evtchn(struct XenLegacyDevice
*xendev
)
762 if (xendev
->local_port
!= -1) {
765 xendev
->local_port
= xenevtchn_bind_interdomain
766 (xendev
->evtchndev
, xendev
->dom
, xendev
->remote_port
);
767 if (xendev
->local_port
== -1) {
768 xen_pv_printf(xendev
, 0, "xenevtchn_bind_interdomain failed\n");
771 xen_pv_printf(xendev
, 2, "bind evtchn port %d\n", xendev
->local_port
);
772 qemu_set_fd_handler(xenevtchn_fd(xendev
->evtchndev
),
773 xen_pv_evtchn_event
, NULL
, xendev
);
778 static Property xendev_properties
[] = {
779 DEFINE_PROP_END_OF_LIST(),
782 static void xendev_class_init(ObjectClass
*klass
, void *data
)
784 DeviceClass
*dc
= DEVICE_CLASS(klass
);
786 device_class_set_props(dc
, xendev_properties
);
787 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
788 /* xen-backend devices can be plugged/unplugged dynamically */
789 dc
->user_creatable
= true;
790 dc
->bus_type
= TYPE_XENSYSBUS
;
793 static const TypeInfo xendev_type_info
= {
794 .name
= TYPE_XENBACKEND
,
795 .parent
= TYPE_DEVICE
,
796 .class_init
= xendev_class_init
,
797 .instance_size
= sizeof(struct XenLegacyDevice
),
800 static void xen_sysbus_class_init(ObjectClass
*klass
, void *data
)
802 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(klass
);
804 hc
->unplug
= qdev_simple_device_unplug_cb
;
807 static const TypeInfo xensysbus_info
= {
808 .name
= TYPE_XENSYSBUS
,
810 .class_init
= xen_sysbus_class_init
,
811 .interfaces
= (InterfaceInfo
[]) {
812 { TYPE_HOTPLUG_HANDLER
},
817 static Property xen_sysdev_properties
[] = {
818 {/* end of property list */},
821 static void xen_sysdev_class_init(ObjectClass
*klass
, void *data
)
823 DeviceClass
*dc
= DEVICE_CLASS(klass
);
825 device_class_set_props(dc
, xen_sysdev_properties
);
828 static const TypeInfo xensysdev_info
= {
829 .name
= TYPE_XENSYSDEV
,
830 .parent
= TYPE_SYS_BUS_DEVICE
,
831 .instance_size
= sizeof(SysBusDevice
),
832 .class_init
= xen_sysdev_class_init
,
835 static void xenbe_register_types(void)
837 type_register_static(&xensysbus_info
);
838 type_register_static(&xensysdev_info
);
839 type_register_static(&xendev_type_info
);
842 type_init(xenbe_register_types
)